Bolt



. -cb i6, 1923.

A. C. ANDERSEN ET AS..

BOLT

' Filed Dec. 14, 1.921

INVENTORJ Vto " Yor nnraoruf-raroisrean,21e-eo Be it knoivn that We, ANDREW CHRISTAN ANDnnsnN, THOMAS, PORTER ARCHER, and

ed Vcertain new and 'useful Improvements .inf of which Ythe follonf'ingnls a specilif Belts,

cation.

This invention relates to .sliding lock or latch bolts andk is vespecially ydesigned to* afford a cheap bolt construction which vvill afford a'suitable substitute for acast metal bolt. YMost' bolts arecastings andnoty only V expensive but require considerable machining in order to make a Vsuitable sliding bolt. lt isfthe object of the present invention to afford a bolt construction made from a I Vstamping united Witha piece k ot rolled metalto form the head of a bolt;

It isnot broadly newA toimake an entire bolt of a. stamping but the head construe! tions of sucha bolt are of rather ilimsy, un- Y satisfactory construction. By unitingffthe stamping and the rolled bolt hea-d, Wefa fordfa relativelyrheavy solid Vhead forthe boltrand at the same time have a production article'that Inaybeivery quickly'and cheaply l they canbe saWed off into short lengths to made andrequires little or no machiningy In the drzmfings-,i--'y i ,FigT 1y is a perspective of theV bolt. y Fig. 2 is a longitudinal section: ofthe lsame andthecase in which itis guided..

ingflever retractor but the yprinciple here involved maybe usedVV with any other form of retractor. Consequently We do notlimit ourselves to a Vlever-actuated bolt- Inl the lever typ of bolt which YWehave, shownas the forward part 'ot-the stamping Vturned down as at Z2 to act as aguideon thefront'f A u plate c of theV lock casing.'V The rearfand central portions oflthe body' are bridged" Y' over the Yfront plate and `spaced iftherefrom by the turned-down runners d which serve as Y Contact surfaces of minimum area kto engage Vandrun on-the.inside ofthe aceplatdgat` 150V the same time the rear one d forrnsran abutmentto be engaged bythe latch operating Ylever (not shown).

y Inthe center of the'spacevbetweenthe tvvo y Y A`runners We stamp upV @spot lfwhicl1- has 'AinlicatieniledDeceinberliiiy"Q21.; Serialf i A. i Y* I'it@l'tiatlfianeeiens:i l

portion of minimum size With'the back plate f 4 l H the ybolt were made. to fit along nearly its entire area tightly against Y the back ease :so

`-j "The front portion ofrthefblt bodyf'um's fshown byA thefbolt head andconsequently this isa cheaplproduetionproposition. "The,

i are united tothe body .ofthe bolt by ythe ke.

two being set into a suitable jig andv spot- This boltis intendedor use With a swing an example ofthe invention,thebody-of the'Y l bolt isY formed oa: stamping@whichhas fa. Spotjfarranged to engage with suchV plate vandspring it slightly for .the lpurpose ofV to minimizethe frietionfof the bark plate ingguiding the bolt. nthe secondjplaca'it kenables a portion of the boltltofbear tightlyfk against the back plate to prevent rattling.

as to slightly spring the back ease-,it would bei. impossible -to move the bolt, soy great Y' Awould be the friction.v On the other hand, ithejbolt ismad'e loose enoughr to ,permit the contacter" YAalmost the entire body portion,1then'the lbolt will vibrate and rattle, hence this` simple expedientof striking up a spot to tightly engage andslightly springl the back-plate affords relatively'fsinall fric'- f tion and at' the same time affords a nonrattling bolt.

down as atb'.` This is adapted to set into ya head or insert e; This isa solid rolled head( These `jhealdsj-re sawed fromA a solid `metal bar 'of fthegcross vsectional configuration barsfmay be rolledina vrolling mill to preciselythe head vconliguration required,V then 'f form separate 'bolt heads. These boltJ heads Welded together .byjapplying tivo or three `r contacts of the rspot-Welder electrodes.

1. rt-flock or latchfbolt comprisinga `case 90 of the plates" and havingat the opposite side forming a minimurn'friction anti-rattle en-A vgag'ementofthe bolt with its guide.

' 2 A lock or latchbolt comprising'a :case providedl with a front 'and back plate,k and a `reciprocating bolt guided in thefcase pro- Qvided'with a head,fand 'a stamped-outbody 105 i' i gaging the head Vand. springing theother, plate, out slightly and forming an antifrat- Y Clineengagement??thebolt'wthb?@Se i .3.H'A lock, having.inicombinati0n, a case for `,gfliivdlyilig a" latch bolt, and aflatchl bolt i gliidedtherein and'having a portion'of the latch boltrbearing on'H the inside ofthelatch VWitli rspect'to said latchcase;

4., A lock,iha,vingfinfcombinatien, a case fon-housing and guiding alat'ch bolt,Y and said latch bolt piQifi/dre ly with turned ydewn runnersf` bearing on the inside of the case atone sideand previded with a struck olut'bearing spot for bearing against the in- SdGViOf the case at the othervside, the majorV poi-tien v`of thealatch' bolt. being. thereby `ie- `moved frombearingY relation with both sides of the insideV of thecase. f

' In Atestimony whereoffwe a-Hix our ksig- 20 .f natures.

ANDREW CHRISTIAN ANDERSEN. A

.THOMAS` PORTI-:R f ARCHER. PAUL wALDp smLER.' 

